(19)
(11) EP 0 502 670 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.10.1992 Bulletin 1992/44

(43) Date of publication A2:
09.09.1992 Bulletin 1992/37

(21) Application number: 92301736.2

(22) Date of filing: 28.02.1992
(51) International Patent Classification (IPC)5: H01S 3/25, H01S 3/025
(84) Designated Contracting States:
DE FR GB

(30) Priority: 04.03.1991 US 663357

(71) Applicant: Karpinski, Arthur A.
Jordan, New York 13080 (US)

(72) Inventor:
  • Karpinski, Arthur A.
    Jordan, New York 13080 (US)

(74) Representative: Palmer, Roger et al
PAGE, WHITE & FARRER 54 Doughty Street
London WC1N 2LS
London WC1N 2LS (GB)


(56) References cited: : 
   
       


    (54) Laser diode array


    (57) A laser diode array in which a conductive layer is provided over a nonconductive or insulating layer, grooves (20) being formed in the conductive layer, and laser diodes being disposed in the grooves (20). In one embodiment, the layers are separate; in another embodiment, the conductive and nonconductive layers are provided in the same monolithic substrate (10), which may be undoped semiconductor material such as silicon, with a highly doped upper portion in which the grooves (20) are formed. In another embodiment of the array, the diodes are mounted in the grooves (20) such that at least a portion of their light is emitted towards a bottom of the array.






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